Tumbler-washer.



.PATENTED MAR. 17, 1903.

E. E. MURPHY. TUMBLER WASHER,

APPLIGATION FILED 00 T. 9, 1902.

2 SHEETS-SHEET 2.

NO MODEL.

UNITED STATES Fries,

EDWARD E. MURPHY, OF CHELSEA, MASSACHUSETTS, ASSIGNOR TO PUFFER MANUFACTURING COMPANY, A CORPORATION OF MAINE.

TU M BLsR-wAsH ER.

SPECIFICATION forming part of Letters Patent No. 723,009, dated March 17, 1903.

Application filed October 9, 1902. Serial No. 126,567. (No model.)

T at whom, it may concern:

Be it known that I, EDWARD E. MURPHY, of Chelsea, county of Suffolk, and State of Massachusetts, have invented an Improvement in Tumbler-Washers, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

The present invention relates to a tumbler- [O washer of the kindcommonly used in connection with soda-fountains and the like, and is embodied in a washer of that type in which the tumbler is placed in a receptacle and acted upon by jets of water controlled by a I 5 valve which is commonly actuated by pressing the tumbler into the receptacle.

The mainobject of the invention is to provide the device with a valve which is easily operated and not affected by the water-pressure, so that it will return readily to its seat when the tumbler is removed without any sudden movement which would result in noise and water-hammer.

The tumbler-washer embodying the invention comprises a receptacle for the water tothe action of which the tumbler issubjected, the said receptacle having a suitable drainoutlet and being provided with inlet-jets to distribute the water over the outside and in- 0 side of the tumbler. The inside of the tumbler is subjected to the action of the water passing upward into the inverted tumbler through a middle spray-nozzle, while the outside of the tumbler is washed by water which issues from jets formed in an annular watertube near the top of the receptacle and pointing diagonally downward.

5o chamber having lateral inlets between the.

said pistons. There are two sets of such lat- The water is con-' trolled by means of a valve which is adapted.

the pressure is equalized in both directions.

The movement of the valve-stem, however,

causes one of the pistons to pass beyond one of the said sets of inlets, so that the water entering therefrom passes. into the tube beyond the piston and is free to flow out of said tube through lateral outlets leading to the annular spraying device and also through a lateral inlet to the hollowvalve-stem in order torsupply the spraying device at the end of said stem. With the valve open, however, one of the sets of inlets still admits water to the'space between the pistons, so that there is 'the same pressure tending to maintain the valve open as there is tending to close the. same when the tumbler has been removed. The valve-stem is further acted upon by a spring which is of sufficient strength to overcome the friction of the pistons and weight of the valve, so as to restore the valve to normal position when the pressure thereon has been removed, the spring alone, however, acting upon the valve, since the Water-pressure is continually. equalized, so that the valve will close easily without any thump or shock.

Figure 1 is a vertical section through the middle of a tumbler-washer embodying the invention. Fig. 2 is a top plan View of the same; and Fig. 3,-a partial vertical section similar to Fig. l, but showing the valve open instead of closed.

As herein shown, the tumbler-washer embod ying the invention comprises a cup-shaped receptacle (1 of sufficient size to contain the. tumbler to be washed, the water beingfed to 0 said receptacle through a series of jets 12 formed at the end of a hollow stem 17, which controls the valve, as will be hereinafter described, and also through a series of pipes c, which-lead to an annular pipe 0 provided 5 with lateral jets a The tumbler when applied to the receptacle is inverted and rests upon radial arms or supports 19 connected with the stem 6, the said supports being sym-. metrically arranged and provided with cov- ICO erings, of rubber or similar yielding substance, as indicated at b, to protect the edge of the tumbler when the same is supported thereon. The stem b is depressible and adapted to operate an annular valve, as will be hereinafter described, so that when the tumbler is inverted and placed upon the supports 11 and then pushed downward the valve is operated to admit water to the interior jets b to act upon the inner surface of the tumbler and also to the jets 0 which direct the water in streams against the outer surface of the tumbler. The valve controlled by the stem b is arranged to be balanced under all conditions, so that it is not acted upon by water-pressure, and can be opened or closed independently of the action of such pressure, so that itnot only opens easily, but will close without shock. As herein shown, the valve comprises two pistons 19 and If, each of which is provided with an ordinarycup leather packing b the said pistons being connected with the tubular stem b and working in a tubular chamber (1, which projects below the receptacle a. The said chamber 01 is provided with lateral inlets d and d both of said inlets being between the pistons 19 and b when the valve is in the normal position. (Shown in Fig. l.) The space between the two pistons, therefore, is open to the water-pressure, the water being supplied through an inlet 6 to an annular chamber 6 surrounding the chamber (1, so that the water passes from the chamber e to the chamber at through the lateral inlets d and d aforesaid between the pistons b and I). The valve-stem h is normally held in the position shown in Fig. 1 by means of a spring which is interposed between the lower piston 19 and the bottom of the tubular chamber d, the strength of the said spring being sufficient to overcome the friction developed between the pistons and the walls of the chamber dan'd to restore the valve to its normal position after the pressure thereon has been released. As herein shown, the inlet e and the chamber 6 are formed in a single casting, which is provided with outletpassages e leading to a suitable drain-outlet to carry away the water which enters the receptacle a to spray the tumbler.

Upon reference to Fig. 1 it will be seen that with the valve in its normal position the Water, while free to enter the space between the two pistons b and 6 is trapped in said space and cannot escape, it being necessary, therefore, in order to open the valve to move the stem 19, carrying the said pistons, until the upper piston 19 passes the ports 01 so that the water is free to flow into the tubular chamber d above the said piston. Upon thus depressing the valve to the position shown in Fig. 3 the water will pass through the ports (1 to the chamber 01 above the piston 6 and thence through lateral outlet-ports into the tubes 0, from whence it issues through the jets 0 a portion of the water also passing through the lateral inlet 17 to the tubular valve-stem b, issuing from said stem, through the jets b in the form of a number of streams,

which act upon the inner surface of the tumbler. At the same time the full pressure of water is admitted through the ports 01 tothe space between the pistons 12 and b so that no pressure is exerted upon the valve-stem tending to restore the same to its normal position with the valve closed. Upon removing the tumbler, however, the valve-stem will be moved upward through the action of the spring 19 the pressure upon both pistons being equalized in opposite directions as soon as the port d is cut 06, so that the waterpressure will not act in any way upon the valve to seat the same, the seating of the valve, therefore, taking place gradually in response to the action of the spring, which need be strong enough only to overcome the weight of the stem and the friction of the pistons.

The main inlet e and the outlet-passages 6 as alreadystated, may conveniently be formed in the same casting, and the tubular chamber d is herein shown as secured by means of screw-threads in a coupling-piece f, which in turn is threaded in a portion of the main casting, as shown. The said coupling-piece f also serves as a support for the tubes 0, which are herein shown as three in number, communicating with the lateral outlets f in the coupling-piece f, which is provided with an annular channel just above the member in which the chamber d is formed, there being a valve-seat around the said annular channel which is closed or covered when the valve is in its normal position. The valve-stem 1) projects through a guide if, screw-threaded in the coupling-piece f, the lower end of which guide constitutes a stop or seat for the valve. The said lower end of the guide is shaped as shown to afiord an annular inlet to the ducts 0 when the valve is open.

For convenience in assembling the chamber d is shown as formed in a tube open at both ends, the lower end being closed by means of a screw-threaded plug '1 having a central projection to afford a support for the spring b I claim- 1. In a tumbler-washer, the combination with a receptacle; of a movable support for the tumbler provided with a tubular stem and a jet or nozzle; a valve-seat formed around said tubular stem; a cylindrical chamber be low said valve-seat provided with two sets of lateral inlets; and pistons on saidstem fitting said chamber and so located with relation to said lateral inlets that both sets of inlets normally communicate with the space inclosedlow said inlets, said pistons being so located that one of said inlets communicates with the space between said pistons regardless of the position of the valve-stem; a valve-seat at one end of said chamber cooperating with a valve carried by said valve-stem and ducts beyond said valve-seat to convey the water to the outside of the tumbler.

3. In a tumbler-washer, a movable hollow valve-stem provided with a lateral inlet and an outlet or nozzle; a chamber having two sets of lateral inlets; pistons on said valvestem working in said chamber between which pistons said inlets are normally located ducts at the outlet of the chamber leading to an annular spraying device, one of the pistons being movable past one of the sets of lateral inlets to open communication between the same EDWARD E. MURPHY.

Witnesses:

HENRY J. LIVERMORE, NANCY P. FORD. 

